Machine for operating upon shoe-soles.



L. A. GASGRAIN.

MACHINE FOB OPERATING UPON SHOE SOLES.

APPLICATION FILED JULY 17, 1911.

Patented June 25, 1912.

@ZZkaeeecr %%M MY V COLUMBIA PLANOGRAPH CO-T WASHINGTON. D. C.

FFIEE.

LOUIS OASGRAIN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING UPON SHOE-SOLES.

Specification of Letters latent.

Application filed July 17, 1911.

Patented June 25, 1912.

Serial No. 638,889.

To all whom it may concern:

Be it known that I, LoUIs A. CAsGRAIN, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Operating upon Shoe-Soles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for operating upon the marginal portion of the sole of a lasted shoe, and more particularly to machines of this class for making impressions or indentations in the up er surface of the marginal portion of t e sole. In machines of this class, the tool or tools by which the impressions or indentations are made in the surface of the sole are usuallyheated to render the impressions made by the tool more firm and lasting. In order to prevent the upper from being injured by contact with the tool during the operation thereof, an upper guard is ordinarily mounted adjacent the outer face of the tool in position to prevent contact of the upper there with, againstwhich guard the upper is held during the operation of the tool upon the margin ofthe sole. This guard as heretofore constructed has consisted of a sheet metal plate mounted in fixed position over the outer face of the indenting tool. hen the tool is heated, the heat is transmitted to the guard and the leather of the upper is frequently discolored by contact with the heated guard.

The object of the present invention is to provide an upper guard for machines of the class referred to which will not become heated to a-sutficient degree to injure the leather of the upper in contact therewith.

With the above object in view, a feature of the invention contemplates the provision in a machine of the-classreferred to of a traveling guard arranged in position to prevent contact of the upper with the operating tool or tools, and means to move the guard to change the port-ion thereof in proximity to the tool during the operation of the machine. In the best form of the invention which has yet been devised the guard consists of a traveling belt arranged to move across the outer=face of the indenting tool.

Other features of the invention consist of certain constructions, arrangements and combinations of parts, the advantages of which will be obvious to one skilled in the art from the following description.

In the drawings illustrating the invention in the best form at present known to the inventor:Figure 1 is a partial side elevation of a machine embodying the invention, certain portions thereof being shown in section; Fig. 2 is a section taken on the line 22 of Fig. 1, looking in the direction of the arrows; and Fig. 3 is a section taken on the line 33 of Fig. 2, looking in. the direction of the arrows. I

The invention, as illustrated in the drawing, has been embodied in a machine for making impression or imitation stitches upon the upper surface of the margin of the sole of a lasted shoe. The indenting tool, indicated at 1, consists of a frusto-conical wheel provided with teeth suitably formed to produce the desired indentations. The wheel is mounted to rotate about the stud 2 secured by means of a split clamp in the lower end of a tool carrier 3. The indenting tool is arranged to act on the mar ginal portion of the sole of a shoe, as indicated in Fig. l. The tool carrier 3 is arranged to slide in suitable guideways 4 in the head 5 of theoverhanging portion of the frame, and under the action of gravity assumes its lowermost position when not in operation. hen a shoeis inserted in the machine, the tool carrier is raised by the en gagement of the indenting tool with the sole to bring the upper end of said carrier into the range of action of a hammer mechanism consisting of a series of rolls 6 mounted upon a carrier 7 secured to the operating shaft 8 of the machine. This hammer mechanism operates to deliver a series of blows in rapid succession to the tool carrier3.

The mechanism above described is constructed, aruanged and operated substantially as disclosed in the U. S. patent to Spencer, 917,807, April 13, 1909.

The shoe is supported upon a rotary work support 9 mounted uponthe forward extremity of a pivoted arm 10, said arm being operated in the usual manner to raise and lowerthe work support by a treadlc connected to a treadle rod 11. The work support is preferably rotated positively to feed theshoe through the machine. To this end a gear 12 is secured to the work support, the said gear meshing with a gear 13 mounted on a stud shaft 14 journaled in the frame to therear of the work support. The shaft let also carries a second gear .15 secured thereto above the gear 13 and meshing with a gear 16 carried by a vertical shaft 17 journaled in the frame and extending upwardly alongside the shaft 8. A worm wheel 18 is attached to the upper end of the shaft 17 and meshes with a worm 19 mounted on the shaft 8 so that when the shaft 8 is in operation, rotary movements are imparted to the shaft 17, to the shaft 14: and to the work support 9.

The traveling guard for preventing contact of the upper with the indenting tool is indicated at 20. This guard in the present embodiment of the invention consists of an endless belt made of leather canvas or other suitable material and is arranged to move across the outer face of the in denting tool between the tool and the upper of the shoe. The said belt is carried and guided by a series of rolls 21, 22, 23, 2 1 and mounted on brackets 26 and 27 secured to the frame of the machine. The bracket 26 may be formed integral with the frame of the machine as illustrated, or it may be made separate from said frame and rigidly secured thereto by any suitable means. The bracket 27 which carries the rolls 24 and 25 is mounted on a boss 28 formed on the bracket 26 and is arranged for adjustment about said boss to tighten and loosen the belt 20 by means of a split clamp 29.

Means is provided for operating the guard belt 20 to move said belt across the outer face of the indenting tool preferablyin the general direction of the feed movement of the shoe. In the construction illustrated, the mechanism for operating said belt comprises a gear 30 carried by the shaft 17 which gear operates a train of gears 31, 32 and 33 carried by the rolls 23, 24: and 25 respectively, as shown in Fig. 2. By means of the above described construction and arrangement of the belt operating feed movement of the shoe.

mechanism, when the shaft 8 is in operation, rotary movements are imparted to the rolls 23, 2tand 25 in a direction to move the portion of the belt in proximity to the operating tool in the direction of the The guard operating mechanism is in operation during the operation of the machine and operates to constantly change the portion of the guard in proximity to the operating tool.

A gas jet for heating the indenting tool is indicated at 34:.

In indenting the sole of a lasted shoe, the margin of the sole is inserted between the work table and the indenting tool, the upper of the shoe being held against the traveling guard belt as indicated in Fig. 1.

When the machine is in operation, the belt is moved forwardly across the outer face of the indenting tool, preventing contactof the upper with said tool and assisting in the feed movement of the shoe. Since the guard belt is constantly moving to change the portion thereof in proximity to the indenting tool, unheated portions of the belt are constantly presented to the adjacent portion of the tool and the said belt does not remain in contact with or in proximity to said tool at any one point long enough to become heated to a degree sufficient to injure the leather of the upper. When any portion of the belt has passed across the outer face of the tool, the said portion kuickly cools to the temperature of the atmosphere.

The term sole as employed in the foregoing description and in the appended claims is to be interpreted as including all that portion of the shoe projecting beyond the upper, whether such portion is formed 1n part by the welt, as in a welted shoe, by a portion of the upper as in a stitched down shoe, by an extension of the sole proper, as in a McKay shoe, or by any other portion of the shoe. Having explained the nature and object of the invention, and having specifically described one form of mechanism in which it may be embodied, what is claimed is 1. A machine for operating upon the marginal portion of the sole of a lasted shoe, having, in combination, an indenting tool, means for heating the tool, a movable guard arranged in position to prevent contact of the upper with said tool, and means operated by the machine to move said guard with relation. to the tool during operation of the tool to change the. portion of the guard in proximity to the tool.

2. A machine for operating upon the marginal portion of the sole of a lasted shoe, having, in combination, an operating tool, a traveling belt arranged to prevent contact of the upper with said tool, and means to operate the belt.

3. A machine for operating upon the marginal portion of the sole of a lasted shoe, having, in combination, an operating tool, a traveling belt arranged to prevent contact of the upper with said tool, guide rolls supporting said belt, and means to adjust certain of said rolls to tighten and loosen said belt.

4. A machine for operating upon the marginal portion .of the sole of a lasted shoe, having, in combination, an operating tool, a guard belt arranged to prevent contact of the upper with the tool, guide rolls supporting said belt, a rotary work support, a shaft, and mechanism operated by said shaft arranged to rotate said support to feed the shoe and to rotate said rolls to marginal portion of the sole of a lasted shoe, having, in combination, an operating tool, a guard belt arranged to prevent contact of the upper With said tool, and means to operate said belt to move the portion thereof in proximity to the tool in the general direction of the feed movement of the shoe.

6. A machine for operating upon the marginal portion of the sole of a lasted shoe, having, in combination, an operating tool, a flexible upper guard arranged to prevent contact of the upper with said tool,

and means to operate said guard to change the portion thereof in proximity to said tool during the operation of the machine.

7. A machine for operating on the marginal portion of the sole of a lasted shoe having, in combination, an operating tool, a traveling belt arranged to move across the outer face of the indenting tool, and means to operate said belt to change the portion thereof in proximity to the tool during the operation of the machine.

LOUIS A. GASGRAIN.

Witnesses:

CHESTER E. ROGERS, LESTER A. S'rown.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

